Twenty-three year old Daisy is an aspiring artist, fresh out of college, who brings a little imagination and youth to the carpool. Her wild stories create a bit of excitement that make the long commute to work go by so much faster. One thing is for certain, there's never a dull moment in the car when Daisy's a passenger.

Carmen is a twenty-eight year old Latina litigator at a big downtown law firm. She's obsessed with the idea that she and her husband, Jaime, are a “power couple.” After a few years of marriage, her "power couple" mentality has taken a beating. She's had their first kid, her husband has been laid off from his fancy corporate job, and now she's stuck being the bread winner while her husband stays at home and watches the kid. While Carmen's at the office, sleep deprived and leaking milk, Jaime's at home in his boxers, gaining weight. One can only imagine that she's ready to vent as she soon as she hops in the car with the other commuting ladies.

Thirty-six year old Paula is a tall, Texas-born beauty queen, and former Miss El Paso. Paula has perfect nails, teeth and hair – and an oversized personality to match. She moved to Los Angeles two years ago from Dallas, when her husband got a job. In a nutshell: he cheated, she found out, he left her, and now she’s a branch manager at a bank, hating Los Angeles and worried about losing her looks.

Sylvie lives with her aging mother who is sliding into Alzheimer’s disease. Sylvie used to be a high-powered investment banker, but she had a crisis of conscience and decided she needed to “give something back” to the community. Now she runs a Montessori school in the office building, catering to the “gifted” children of the executives who work there. Working with children has led Sylvie to a profound truth: "What the hell was I thinking?"